Project

1

Introduction

Welcome to ABA 534!

The use of single-subject research methodology within ABA

Behavioral measurement

Single-subject research designs

Methods of data analysis

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An initial course in the use of single-subject research methodology within applied behavior analysis, which includes an overview of behavioral measurement, single-subject research designs, and methods of data analysis. Single-case experimental designs are a hallmark of applied behavior analysis, operating to demonstrate functional relationships between applications of independent variables and subsequent effects upon dependent variables. This course will examine theoretical and practical issues in experimental design and control, providing students with a framework for practical applications of research methodology to examine the efficacy of interventions through the use of a natural science approach across educational, clinical, and community settings.

2

Introduction

Why do research?

Many disciplines and professions provide interventions to foster health, safety and welfare

Most interventions are not evaluated systematically

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3

Introduction

Why do research?

When they are evaluated, it is usually through between-group designs

Treatment group

No-treatment

Placebo

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4

Introduction

Randomized controlled trial:

”Gold Standard” for research

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5

Introduction

Limitations to group research:

Evaluation of treatments in everyday settings is needed and group experimental are not feasible

Some interventions cannot be subjected to a controlled trial because only one or a few individuals are being treated

SOLUTION: Single-case designs can scientifically evaluate interventions in ways that are more compatible to applied contexts

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6

Introduction

Single-case designs can scientifically evaluate interventions in ways that are more compatible to applied contexts

Single–case designs have the capacity to evaluate interventions with one or a few individuals

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7

Introduction

Single-case designs encompass three broad topics that will be covered in this course:

Assessment

Experimental design

Data evaluation

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8

Introduction

These are the components of research methodology

Central goal of scientific research: to draw valid inferences

THAT IS: Conclusions that rule out alternative explanations for the results.

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9

Introduction

This week-we will be discussing the topics-highlighting key points in Kazdin (2011):

CHAPTER 1: The study of the individual in context

CHAPTER 2: The underpinnings of scientific research

CHAPTER 3: Background of assessment and key measurement considerations

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Created by: Kathleen Dyer, CCC-SLP, BCBA-D, LABA Adjunct Faculty, ABA Programs